Showing posts with label mirrored sidesseam. Show all posts
Showing posts with label mirrored sidesseam. Show all posts

Tuesday, August 11, 2009

White roses

Stubbornly determined to get a decent sleeve from PMB, I have continued working on getting the armholes ‘right’. I am still *trying* to believe that if the sleeves are bad, that means the bodice/armholes are still wrong, too.

After several aborted attempts, sewing only darts, shoulders and sideseams, I was beginning to run out of this white fabric. I decided to take apart two of the aborted attempts to reuse the front of one with the back of another…recutting them both according to the newest pattern, of course!

But when I got them both ripped apart, I found that my back pattern would NOT fit on the fabric back…the fabric wasn’t long enough for the new pattern! So I had to use the last of the remaining uncut fabric to cut the back…which meant that if I wanted sleeves (which I did) I would have to cut them from the two fabric backs of the previous attempts…so I ripped apart two other previous attempts also, to salvage the backs to use for sleeves!

Well, these backs had had the waist darts marked…twice, actually, in two different colors! So the new sleeves have waist darts marked on the insides…and it shows through this white fabric!

I have enhanced this image so you can see the marks better, as they are much easier to see ‘in person’ than in a picture.






I mark my darts in the traditional way…using a tracing wheel and marking paper. This paper is very old…I don’t like the new stuff I can find. But these marks don’t wash out very easily!
This is how I mark my buttonholes. When I am drafting my PMB pattern, for the number of buttons I choose TWICE PLUS ONE…that way, I can use every other button and omit the bottom TWO button marks…getting a larger space between the last button and the hem than I have between the buttons. For example, I wanted 6 buttons, so I choose 13…twice plus one…then only use 6 of the marks. ALSO, I find that the first mark is slightly lower than I really want it…I don’t know why…so I mark my buttons about ¼” above each mark. I use a hole punch and punch a hole on the center line just above the button marking. Then I use a washaway marker to place a dot in the center of each hole. If it soaks through, I can mark both the buttonholes and the buttons at one time!


As soon as I put this blouse on to check the fit…before putting in sleeves…I could immediately feel the difference! This one felt good! I had made the back longer this time, and it helped a lot. So I decided I would finish this one, complete with collar and sleeves, even if it wasn’t “perfect’.


Since I had decided to put sleeves in this top, I wanted a collar, too…the Italian collar.








But I’ve used this one before, and am not crazy about the way it fits into the CURVED V neckline.

So I altered the pattern, slashing in two places forward of the shoulder mark.

I pivoted the slashes open and inserted paper, so that the slash width at outer edge was .25” at each slash…lengthening the outer edge of the collar by .5”.

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This made the collar’s neck edge better match the shape of the bodice’s front neck edge.
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*But then I decided that the point area was a bit wide, so I used my curved ruler to reshape it some…trimming away about .375” width at the front edge.



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After completing the collar, it was time to tackle the sleeves. The first sleeve I set was drafted with a (-.5) cap height. It had obvious pulls, so I ripped and removed to recut with a .25” cap height. There really wasn’t much change.








I released the sleeve cap and immediately, the cross grain hung much more level. Suddenly it occurred to me that what I REALLY needed to do was EXTEND THE SHOULDER of the bodice, as opposed to making the sleeve cap taller! Of course, I have only .375” seam allowance at the armhole, so that isn’t possible on this one…there isn’t much fabric there to steal! But just to see, I pinned the sleeve using only 1/8” seam allowance…as seen on the right…and it was much better! Of course, I couldn’t sew it that way…I needed to use .25” minimum, so I knew it wasn’t gonna end up as nice as it looked at pinning. Oh well! Next time…







The finished blouse *looks* nice enough!
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I am very pleased with the collar changes.
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But the sleeves are binding.
As usual.
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I am wondering if I should increase my Bust to Bust setting...to move the front waist darts outward slightly? Not to affect the sleeves, but just to make it look/fit better!
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The back still needs some more length over those protruding shoulder blades, especially that left one!

Hopefully, a bit more Center Back Length will help eliminate those diagonal wrinkles, too, by effectively giving the back pattern more shoulder angle.

I will also raise the back neck depth next time, as I lowered it too much…0.75”…on this one.
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The back REALLY strains with forward arm movement.



To try to figure this out, I turned to the wrinkle charts in Total Pattern Fit, Minott Method.


I have already raised the armhole depth, so that isn’t it. The cap is definitely NOT too long, so that isn’t it. I could use more width across the blades, although with the arms at my sides it looks ok. The sleeve IS too narrow. I am thinking that fixing the back width will also fix the sleeve.

See how she moves OUT the back underarm? That is NOT just moving the sideseam forward…that is a NET GAIN. To accomplish that with my PMB pattern, I must do two things…reduce the Bust Cup Size (again?) and increase the Bust Measurement.

Neither change alone will do it---
  • Increasing the Bust Measurement will add to both front and back at underarm points…not just to the back.
  • And reducing the Cup size will add to the back underarm point but will take from the front.

No, it will take BOTH of these changes to increase the width of the back pattern without changing the width of the front.

And once the back pattern has been increased at underarm point, I can use the ARMHOLE SHAPE TOOL to increase the width at the blade level…halfway height of the armhole.

And the sleeves should take care of themselves, once the armhole changes are in place!


Here is the pattern for this white blouse (pink) superimposed on the NEXT ONE.
For the next one, I increased the BUST CIRCUMFERENCE measurement by one inch, and reduced the Bust Cup Size by one letter (C to B, which meant I also had to INCREASE the Center Front Length and Front Shoulder Slope to compensate for the lost front length the larger cup size provides). I also had to increase the Bust Point Vertical setting, lowering it 0.25” (again, because the larger cup size would have done that for me).

On the front pattern, the next one will be wider through the shoulders (longer shoulder length). Notice the odd shape of the new upper front armhole…almost like that ‘arc’ is backwards. Actually, it is…I will redraw it to scoop inward instead of outward. I don’t know why PMB draws the upper armholes whacky sometimes. Trying to do a complex shape with too few components, I suspect.

The front armhole is lower and the bust dart is smaller…because of the reduced cup size (B for next one, this one was C). I have been getting fullness at the tip/release of the bust darts on many of these last few tops…indicating that perhaps the bust darts were actually too large. Also notice that the front shoulder is higher on the new one…since I extended it outward, I think it will also need a bit more height to go over the ‘roundness’ of the shoulder joint!

Also, since the upper sideseam was moved forward as a result of the cup change, I used the SS placement tool to move the lower sideseam forward also, to get mirrored sideseams.

The back is a little longer/taller through the center, but the back shoulders are not taller. The back neck depth has been raised .25” (although it looks like it is much higher when the patterns are aligned at the waist, instead of at the Neck Point!) The back shoulder dart will be slightly smaller next time, because I increased the Front Shoulder With MORE than I increased the Back Shoulder Width.

I am hopeful that these changes will produce a comfortable sleeve. I am hoping that adding that extra inch of BUST Circumference will not make the blouse fit too loosely.
People ask me why I need for the back pattern to be so wide. Since I have a full bust, they expect me to need a wider front pattern. But perhaps it is those protruding shoulder blades…perhaps the wide shoulders…perhaps the forwardly rolled shoulders? All I know is: there has GOT to be a way to get a well-fitting pattern with comfortable sleeves!

And I think this next one might be ‘it’!!!

Friday, June 26, 2009

The Problem with PMB

I wanted to answer some questions and comments regarding this recent bout of tweaking I've been doing.

Plus, I will be busy with house guests this weekend, so posting will be delayed...that is, I haven't had time to create all the visual aids to go with this new 'break-through' in fit! But since some of you are really anxious to know about it NOW, I will do the best I can with just words...pictures and more will follow!


>>>I'm not sure about what 'mirroring' the front and back means <<<

When the bust dart is placed in the shoulder position, the front and back sideseams have the same (but opposite) relationship to the vertical grainline. One angles \ and one / but the angle to vertical is the same...you don't have ( with / or anything crazy like that. When placed side by side, they are mirror images of each other.


I mentioned the "levelness of the waist" on the red overlay...aka, the dress sloper...but want to make it clear--

  • It is not the LEVEL of the waist...and not the height...when on your body, but the fact that the sloper (pattern)'s waist line is nearly 'level' on screen....horizontal...as opposed to being 'low' in the center and 'scooped upward' on the side. I am NOT talking about the levelness of that waist seam on the fitting garment when on the body...just the pattern shape.
  • I know that 'level waist on the sloper' is the goal of WG's fit/tweak suggestions, but that is what I am saying is ruining the fit of the armholes and sleeves!

To make the sloper pattern's waist 'level', many of us have increased the cup size we were drafting with.

Bad.

I did it, too, and now have some guilt over echoing the recommendation! I was trying to be a good team player (and we all see where THAT got me! :))...but I have since figured out that using larger cup sizes is exactly the WRONG thing to do!!!


>>>The top of the back fits fine since I reduce the back width, but as it goes under the arm is where the issues lie.<<<


And where it goes under the arm is the part controlled by the front/back bust-width distribution! There is no getting around this...cup size is the key!


>>>I need more darting in the back waist area than in the front.<<<

Me, too. You don't sound all that oddly-shaped to me! The problem is the F-B distribution of bust width AT underarm level. Once you get that equalized, you will be better off. And if your body needs MORE width in back at bum level than in front, well, then maybe you should give your back pattern MORE WIDTH at underarm level than in front, too! It is just that simple. Forget about whether or not the waist of your red overlay is 'level' or 'straight' across...let it scoop as high as it wants!...it is just a pattern! and it is NOT the pattern you will be sewing! Just get the F-B distribution the way you need it for your body, and everything else will take care of itself!

>>>You've told me what needs to be done - how do I do it?<<<

In a nutshell, if you want to go ahead and 'test' this theory with me, here is what to do:

  • Save your current best chart with a new name, like 'B-cup Trish'.
  • Reduce your cup size until your F & B patterns are equal in width at underarm level...using (-.5) Side/Arm placement (important)...probably need to use a B-cup.
  • You'll have to increase your CFL and FSS a lot to make up the front length difference. It takes MORE than just .375" per cup size lost! Don't be alarmed if the CFL grows to be the same number as the CBL! The FSS will be about 1" or maybe 1.25" longer than the back one...
  • Compare these new patterns to what you have now, to be sure the front length on the new pattern is as long as it is now (on the pattern made with your big-bust-cup chart). Adjust measurements until the new patterns are as tall (from shoulder to waist) as the old patterns.
  • Increase the BP-vertical to put the bust in the right place (it will be higher with the B cup).
  • REset AH shape tool to zeros...don't reshape for this test.

You will notice that your F-ah will be lower and more scooped in this B-cup pattern...this is a good thing! The back armhole will also be better, I bet! And if you compare the sleeves of this new one to the old one, you will also see a difference.



Ok, so now that you have tweaked the measurement chart to equalized the F&B pattern widths at underarm level, NOW you choose your drafting choices:

  • Use S/Arm position of (-1)...this makes the BACK pattern WIDER than the front at underarm level.
  • Use S/Hip position of (-5)...this makes the BACK pattern WIDER than the front at hip level...good, since most of us have a larger bum in back!
  • Use S/Waist of zero to start with, since the forward S/H point will make the back waist darts larger than the front ones. This can be tweaked at fitting.
  • Use 2.5" to 3" bust ease and 3-4" hip ease...whatever you'd normally use. I use 1" waist ease.

Print and sew!

Don't worry that your red overlay looks crazy! Mine shows only a tiny sliver of a bust dart, with a VERY upscooped side/waist.

Like many of you, I wear a D cup bra and was using an E-cup setting to get enough dart size. But I have already sewn/tested this at C-cup, and and got marked improvement! (Pictures to follow...what can I say, I am slow!)

I have already drafted and compared and determined the settings to use for the B cup one...just haven't had time to blog about it or sew the B cup one yet! But as I said, weekend company will delay the sewing a bit longer...but if you wish to test along with me, have at it!

And let me know how this works for you!

Wednesday, June 24, 2009

Peach Eyelet #1

Last week, while suffering with a head-cold/bronchitis, I began tweaking measurements in PMB, to see how things changed. I found that without changing cup size, I could affect the size of the bust dart by just reducing the Bust Measurement.

For example, a 39D-cup produced a larger bust dart than a 41D-cup.

Hmmmm.........

So I decided I would reduce my BU measurement and use more EASE and see what happens.

But of course, I couldn’t leave it at that…I had to make other changes, too!

As you know, I have ‘issues’ with the front armhole in PMB.

  • I always have to manually scoop the F-AH to get the right shape. I just haven’t been able to ‘force’ the program to give me a good AH.
  • Plus, the sleeves are never ‘just right’….the front of the sleeve hangs free of the arm, but the back of the sleeve tends to lay close to the back of my arm…this is a clue to me that something is wrong with the armhole shapes and sizes, but I just haven’t been able to figure it out (until now!).

So I thought, what the heck…I’ll reduce my cup size, too, and see how THAT affects the armholes.

  • I do know that reducing the cup size DOES scoop the F-ah a little.
  • PLUS, it changes the FRONT to BACK distribution of the patterns at underarm level…the larger the cup size, the narrower the back width at underarm level.
  • PLUS, the larger the cup size, the larger the bust dart.
  • PLUS, the larger the cup size, the longer the front length on the pattern. This meant that if I reduced my cup size, I would have to increase the Center Front Length and Front Shoulder Slope, to make up the difference in what the reduced cup size would eliminate. In PMB, each cup size makes a difference of .375” in front length. So, going down one cup letter meant going UP 0.375” on my CFL and FSS.

But along with this reduced cup size comes another change...not to the blouse pattern that I will be sewing, but to the RED OVERLAY (aka the dress sloper) that PMB drafts with my measurements, upon which the patterns are based. I have been trying to follow the advice of the company…and that advice is to INCREASE THE CUP SIZE in order to LEVEL THE WAIST OF THE SLOPER.

This is the way my previous patterns looked, with my previous measurement chart (which uses an E cup), before I began this recent tweaking:





Look at where the ARROW is pointing….to the amount the Side/Waist is ‘raised’ above the level of the CF waist. The S/W point on my red sloper is .9” higher than the level of the CF…already a bit higher than recommended.




But look at what happens to the sloper’s waist when I REDUCE THE CUP SIZE from (E to D):







Now, after reducing the cup size, the sloper’s waist is even MORE unlevel…the S/W point is now 1.75” above the level of the CFL!





If I were listening to the fitting advice being given, I would immediately reverse this, and increase the cup size to level that waist.

But “been-there, done-that” (and it didn’t work). So now I am going the other way.

What the heck…it is a test garment!


So I created this new measurement chart and set about drafting my patterns.

Because the reduced cup size changed the width distribution at underarm level on the F & B patterns, this meant I needed to use different settings for Side/Hip placement than before in order to keep my sideseams as mirror images.

I found that I didn’t have to move the S/H point backward as far as before (since the new back underarm point was now more forward) so I used the (+.25) setting.

This also meant I no longer had to use an extra 2” of hip ease and remove it at the front waist darts, as mentioned here.

So I used:

Side/Arm Point: -1
Side/Waist Point: +1
Side/Hip Point: +.25


The Side/Arm Point in PMB will not go any farther forward than -1.

I always use that (-1) setting, to try to widen the back pattern at underarm level as much as possible, although I always WISH I could make it even wider.

Since that S/A point is sort of ‘fixed’ (maxed out), to get mirrored sideseams the HIP must be balanced to that point (wherever it is) by moving the S/H forward or backward.

Here you can see the sideseam relationship of my new pattern.


I didn’t sew it with a shoulder dart…but it is necessary to put the dart ABOVE the armhole to evaluate the sideseams! The actual garment has a side/bust dart.




Ok, so here is the pattern I sewed.

As you can see, I manually scooped the F-ah as described previously. But that was the only change I made…the rest of the pattern was used as it drafted.














And here is the blouse. The sewing isn't my best work...it is hard to do a good job when you are sick (well, for me, anyway)! At first glance, it isn’t too bad (if you don’t count the way the bust dart puckers at the tip!).

But it is too tight.

The back needs more ease to be comfortable. There is no room for my ‘wings’ to spread when my arms move and no breathing room when I sit. Well, it is wearable, but I am ‘aware’ of the tightness all day.

The Bust Point/Level is too high on this one, and the overall front length is still a bit skimpy...too short (I took care of that on the next one though!).


I have reached the point of having made my shoulders TOO NARROW. I have been gradually reducing the shoulder width measurements on each garment I make...and I should have stopped already!


Combined with this close fit, it is apparent that the shoulder width measurements are much too narrow for my body. For a sleeveless blouse, they are ok, but this blouse was designed to have sleeves!

Because these shoulders were so narrow and the bust/back a bit snug, I decided to NOT use the sleeves, and make this top sleeveless instead...much more forgiving!

I DID sew the sleeves in, though, and evaluate the fit before ripping them out...so I know how this would fit if I DID use them.

And the fit would NOT be good.


This blouse is ‘wearable’ and I did learn a few things by sewing it, but this is NOT the measurement chart that I will continue to use in the future!!!



I learned that using the 39" bust (when I really measure 41") was NOT the way to get a larger dart, even though I used more bust ease. The point of this was the larger dart size...but that is so variable, and can be affected by Side/Waist placement and ease and other things, so I am going to restore my BU size for the next one.


Reducing my cup size from E-cup to D-cup WAS a good thing…the waist on my sloper will just have to continue to be 'unlevel', I guess, because the smaller cup size seems better!


The angle of the sideseam above the bust is better now, but as you can see in the side view above, it looks like it could even angle a little MORE toward the front above the bust dart…next time.



With the new cup size comes a new armhole-- BETTER, but still, my sleeves weren’t ‘just right’. But I’ll have to reevaluate that once I widen the shoulder widths and increase the bust ease.





As you can see in these pictures, I STILL have plenty of ease on the sides under the arms, yet the blouse is constricting across the back with arm movement.




















This top could use another 0.5 to 0.75 inch width all the way down the back sideseam, from shoulder to hip/hem, without changing the front.

So after making this one, I tweaked measurements and settings and compared patterns and created yet another NEW CHART that will give me that!

And that was the second top I sewed recently….stay tuned!

Friday, March 13, 2009

Mirrored sideseams

On the Patternmasterusers chat list on Yahoo, we've been discussing these undesireable wrinkles that frequently occur just behind and below the back armhole of PMB garments, especially on Princess styles. I mentioned that, on my patterns, the Princess style creates a 'gap' between the front and side front patterns at bust level and that this loss of bust width is compensated for by increasing the width of the back pattern at underarm. But this changes the shape of the back sideseam...I've talked about sideseams before.

But hours later, I'm still thinking about those wrinkles of fabric at the side/back armhole area. So I opened PMB and drafted and compared a few patterns...not even Princess ones, but just the basic Torso. I used my own measurement chart with ZERO ease at bust, waist and hip. I set the SS position to ZERO at bust, waist and hip. Below, you can see what I would get.

If I aligned the back to the front at the underarm points, you can see that the back pattern extends lower at the hem than the front pattern. But think of it (and look at it) this way: When I align the front and back at the hems, you can see that the back armhole level is HIGHER than the front armhole level. And this is because the sideseams are NOT mirror images.

























Now, I can imagine that because this back armhole is higher than the front armhole, once the sideseams are sewn and the sleeve is sewn in, it is likely that this higher back armhole will be 'forced' downward on the body, creating folds. The balance of the patterns is off.

With the sideseam positions set at ZERO as above, the HEIGHT of the back armhole is 8.471".
The HEIGHT of the front armhole is 7.743" (as measured straight up).




But look at what happens if the SS tools are used to 'force' the front and back sideseams to become mirror images: When the Front and Back patterns are aligned at the hem, there is only a tiny difference in the heights of the front and back armholes...and it is the FRONT that is higher, not the back!





To force the sideseams to become mirror images, I used a Side/Arm Position of (-1) and a Side/Hip Position of (+.5). As you can tell by the size of those waist darts, the S/W position is still in the ZERO position, but that setting only affects the size of the waist darts, not the placement of the waist at side seam.

With the sideseam in this position and the front and back sideseams having mirrored shapes, the HEIGHT of the back armhole is now 8.954" and the front armhole is now 7.326" tall.

This means that moving the sideseam as I have had changed the balance of my patterns...I have gained 0.483" in back armhole height, and lost 0.417" of front armhole height!

I am thinking that the taller back armholes combined with the shorter front one is less likely to result in the folds of excess fabric that are fequently seen on PMB garments in back. Not a scientific study or anything...purely conjecture!

 
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